package com.atguigu.Serivce;

import com.atguigu.Utils.R;
import com.atguigu.pojo.ShoppingCart;
import com.baomidou.mybatisplus.extension.service.IService;

public interface ShoppingCartService extends IService<ShoppingCart> {

    R add(ShoppingCart cart);

    R listCart();

    R sub(ShoppingCart cart);

    R cleanCart();
}
